From owner-freebsd-net Thu Sep 12 4:37:40 2002 Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4F53737B400 for ; Thu, 12 Sep 2002 04:37:38 -0700 (PDT) Received: from laposte.enst-bretagne.fr (laposte.enst-bretagne.fr [192.108.115.3]) by mx1.FreeBSD.org (Postfix) with ESMTP id 7B1FF43E6A for ; Thu, 12 Sep 2002 04:37:32 -0700 (PDT) (envelope-from Francis.Dupont@enst-bretagne.fr) Received: from rsm.rennes.enst-bretagne.fr (rsm.rennes.enst-bretagne.fr [192.44.77.1]) by laposte.enst-bretagne.fr (8.11.6/8.11.6) with ESMTP id g8CBbOO30884; Thu, 12 Sep 2002 13:37:24 +0200 Received: from givry.rennes.enst-bretagne.fr (givry.rennes.enst-bretagne.fr [193.52.74.194]) by rsm.rennes.enst-bretagne.fr (8.8.8/8.8.8) with ESMTP id NAA13994; Thu, 12 Sep 2002 13:37:25 +0200 (MET DST) Received: from givry.rennes.enst-bretagne.fr (localhost.rennes.enst-bretagne.fr [127.0.0.1]) by givry.rennes.enst-bretagne.fr (8.12.3/8.12.3) with ESMTP id g8CBbO6o083811; Thu, 12 Sep 2002 13:37:24 +0200 (CEST) (envelope-from dupont@givry.rennes.enst-bretagne.fr) Message-Id: <200209121137.g8CBbO6o083811@givry.rennes.enst-bretagne.fr> From: Francis Dupont To: snap-users@kame.net Cc: Lista , Octavio.Medina@enst-bretagne.fr, Jean-Luc.Richier@imag.fr Subject: Re: (KAME-snap 6885) Reencapsulate IPv6-over-IPv6 "over" IPv4 doesn't work for me, but it should, right ? In-reply-to: Your message of Thu, 12 Sep 2002 13:19:34 +0200. <3D807846.FD8163F1@it.uc3m.es> Date: Thu, 12 Sep 2002 13:37:24 +0200 X-Virus-Scanned: by amavisd-milter (http://amavis.org/) at enst-bretagne.fr Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org In your previous mail you wrote: gif1: flags=8051 mtu 1280 tunnel inet6 2001:720:1500:30::2 --> 3ffe:3326:3:920::1 inet6 fe80::290:27ff:fe86:93d%gif1 prefixlen 64 scopeid 0xe inet6 3ffe:3328:6::f544 prefixlen 126 inet6 2001:720:1500:30::2 prefixlen 128 => you have the same address for the tunnel encapsulation and the tunnel itself. This will give infinite recursive encapsulation which is detected (in this easy case only) and gives an EIO error with a log notice like "gif_output: recursively called too many times...". I don't know if this is a problem of FreeBSD-4.5" or if it's caused by the patches. => try to set MAX_GIF_NEST (kernel option) to a small value (default seems to be 1 which is too small for you) and please cleanup your config (no recursive use of addresses, /64 prefixes on link, etc). Regards Francis.Dupont@enst-bretagne.fr To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message